449227687 has 2 divisors, whose sum is σ = 449227688. Its totient is φ = 449227686.

The previous prime is 449227679. The next prime is 449227717. The reversal of 449227687 is 786722944.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 449227687 - 2³ = 449227679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449227687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449227627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224613843 + 224613844.

It is an arithmetic number, because the mean of its divisors is an integer number (224613844).

Almost surely, 2^449227687 is an apocalyptic number.

449227687 is a deficient number, since it is larger than the sum of its proper divisors (1).

449227687 is an equidigital number, since it uses as much as digits as its factorization.

449227687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 49.

The square root of 449227687 is about 21194.9920264198. The cubic root of 449227687 is about 765.8707882183.

The spelling of 449227687 in words is "four hundred forty-nine million, two hundred twenty-seven thousand, six hundred eighty-seven".